Oil-well pump and flowing device



Sept. A2,9, 1925.

T. R. CARSON OIL WELL PUMP AND FLowING DEVICE Filed Sept. 4, 1924 Patented Sept.l 2,9, 1925.

- uNlTED STATES THOMAS Ra CARSON, OF SAN DIEGO, CALIFORNIA.

OIL-WELL PUMP 'AND FLOWING- DEVICE.

To all 'whom t may concern.'

,Be it known that I, THOMAS R. CARSON, a

citizen of thevUnited States, residing at San Diego, in theA county of San Diego and State of California, have invented a certain new and useful Oil-Yell Pump and Flowing Device, of which the following `is a specification. f

This invention relates to a device for use in connection with oil wells and more particularly in connection with oil wells in fields where the gas pressure may be utilized in connection with suitable apparatus for elevating the oil a substantial height in the casing.

In practice it is found that frequently the gas pressure issuiiicient to raise the oil a substantial amount, but not sufficient to raise the oil to lthe top of the well, and the present invention is directed to an improved structure, by means of which the oil may be raised to the surface in such cases.

A further'object is the provision of means by which oil partially raised in the well by gas pressure may be raised the balance of the way independently of and free from any as. d g Further objects will more particularly appear in the course of the following description. f'

The present invention consists in the novel construction, arrangement, and combinations of parts as hereinafter more particularly described and claimed.

One sheet of drawings accompanies this specification as part thereof, in which like reference characters indicate like parts throughout. l

The single figure shown is avertical cross sectional View through a section of an oil well casing, illustrating the application of the present invention.

Y In accordance with the present invention as illustrated, in a well casing lis positioned a tube 2 through which the oil is to be'drawn j from the well. 3 indicates a packer secured to close casing l except for the passage through tube 2. Packer 3 as illustrated corresponds to the packer in the gas pressure hydraulic elevator now `in common use. Above packer 3 a second packer 4 is positioned upon plate 2, and preferably upon the top of papker 4 is secured va bucket 5 adapted to receive deposits of sand, etc.

Above packer 4' tube 2 is provided with va plurality of transverse holes 6, and above Application led Septemberi 4, (1924. Serial No. 735,966'.

holes 6 a plug tube 2. v

Above plug 7 tube 2 is provided with one Or more radial `internally threaded bores adapted to receive an angle coupling 9 connected with a downwardly directed tube. 10, the lower end of which extends adjacent the top of packer 4 and within bucket 5. Any number of such tubes may be used as desired. Above coupling 9 a valved piston 1l is positioned within the bore of tube 2 adapted to operate as a lifting pump.'

In operation tube 2 with the structure previously described is lowered into the well casing l until. packer 3 reaches substantially the height in the casing to which the gas pressure within the well will elevate the oil, this point being predetermined and the plug 7 so arranged within tube 2 that the bottom of the latter will extend as usual to the bottom of the well. It will'be apparent that the gas pressure will raise the oil in 7 is positioned in the bore of vtube 2 and discharge the same through vpiston 11 operating in pipe 2 for drawing the oil from bucket 5 through downwardly directed pipe l0. The gas will flow upwardly through casing 1 and be discharged at the top of the casing, while by reason of plug 7 only oil will be raised by pump 11.

Having thus fully described my invention, I claim: i

l. In an oil well having a casing, a tube, a packer mounted upon the tube and adapted to operate as a closure between the tube and the casing, said tube provided with a vent above the packer, a second tube extending from adjacent the top of the packer and communicating with n the rst tube above said vent, and a lift piston Operating in the rst mentioned tube above the point of con- 3. vIn an oil well having a casing, a tube,

said tube provided Awith al a packer mounted upon the tube adapted to operate as a closure between the tube and the casing, a bucket mounted upon the top of the packer, said tube provided with a vent above the top of the packer, a plug in the tube positioned above said vent, a second tube extending from Within the bucket adjacent the bop of the packer and communicating With the tube above the plug in said tube, and a lift piston Within the first mentioned tube above its point of connection with the second mentioned tube,

4. An improved oil lifting device comprising in combination a tube, a packer carried by the tube adapted to operate as a clos-ure between the tube and the casing of an oil Well, a bucket mounted with its bottom adjacent the packer, said tube having a vent spaceI above the bucket, a plug within the tube above the vent, an auxiliary tube extending from Within the bucket adjacent the packer and communicating with the tube above the plug, and a lift piston operable within the tube above the Iatters junction i with the auxiliary tube.

In testimony whereof, I have hereunto set my hand at San Diego, California, this 30th day of August, 1924.

THOMAS R. CARSON. 

